Chiadikaobi Onyike, M.D.
NPI 1184678724 · Psychiatry Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chiadikaobi Onyike, M.D. is a Psychiatry Physician provider in Baltimore, MD (NPI 1184678724).
Provider details
- NPI number
- 1184678724
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D56293 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
532 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 407 | $51 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 71 | $180 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 25 | $132 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 16 | $80 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 13 | $176 |
Typical Medicare-allowed amounts for these services range $51–$180 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Sertraline Hcl | 38 |
| Olanzapine | 27 |
| Amantadine Hclbrand: Amantadine | 24 |
| Risperidone | 23 |
| Memantine Hcl | 22 |
| Donepezil Hcl | 22 |
| Quetiapine Fumarate | 20 |
| Trazodone Hcl | 19 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 19 |
| Benztropine Mesylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24,949 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-19
- Last updated
- 2012-12-05
Frequently asked questions
- What is Chiadikaobi Onyike's NPI number?
- Chiadikaobi Onyike's National Provider Identifier (NPI) is 1184678724, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chiadikaobi Onyike's specialty?
- Chiadikaobi Onyike is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Chiadikaobi Onyike located?
- Chiadikaobi Onyike's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Chiadikaobi Onyike's phone number?
- The practice phone number listed in the NPPES registry for Chiadikaobi Onyike is (410) 955-5104.
- Does Chiadikaobi Onyike accept Medicare?
- Chiadikaobi Onyike is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chiadikaobi Onyike's NPI active?
- Yes — Chiadikaobi Onyike's NPI (1184678724) is active in the NPPES registry as of the last update on 2012-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.